Security advisory

{
  "id": "c6e426813bbe9f606b16889e5801838e4610058b85d67006b306f1fe1ec3c964",
  "url": "https://osv.dev/vulnerability/CVE-2019-15892",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-15892",
    "summary": "An issue was discovered in Varnish Cache before 6.0.4 LTS, and 6.1.x and 6.2.x before 6.2.1. An HTTP/1 parsing failure allows a remote attacker to trigger an assert by sending crafted HTTP/1 requests. The assert will cause an automatic restart with a clean cache, which makes it a Denial of Service attack.",
    "evidence": "osv:CVE-2019-15892",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-15892",
      "aliases": [
        "CVE-2019-15892"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/varnishcache/varnish-cache",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4684c38ecfc194b4f3b5b81594832dbb197a3bb9"
                },
                {
                  "last_affected": "efc2f6c1536cf2272e471f5cff5f145239b19460"
                },
                {
                  "introduced": "b14a3d38dbe918ad50d3838b11aa596f42179b54"
                },
                {
                  "fixed": "9f8588e4ab785244e06c3446fe09bf9db5dd8753"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:varnish_cache_project:varnish_cache:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "6.1.0"
                      },
                      {
                        "last_affected": "6.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:varnish_cache_project:varnish_cache:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "6.2.0"
                      },
                      {
                        "fixed": "6.2.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "varnish-6.2.0",
            "varnish-6.1.1",
            "varnish-6.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-15892.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:47.241626769Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3OEOCYRU43TWEU2C65F3D6GK64MSWNNK/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DBAQF6UDRSTURGINIMSMLJR4PTDYWA7C/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KLSF54TDJWJLINIFEW5V5BKDNY5EQRR3/",
        "https://seclists.org/bugtraq/2019/Sep/5",
        "https://varnish-cache.org/security/VSV00003.html",
        "https://www.debian.org/security/2019/dsa-4514"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:lts:*:*:*"
            ],
            "vendor_product": "varnish-software:varnish_cache",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "6.0.0"
                  },
                  {
                    "fixed": "6.0.4"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:varnish_cache_project:varnish_cache:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "varnish_cache_project:varnish_cache",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "6.1.0"
                  },
                  {
                    "last_affected": "6.1.1"
                  },
                  {
                    "introduced": "6.2.0"
                  },
                  {
                    "fixed": "6.2.1"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-15892",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 436491,
  "published_at": "2019-09-03T21:15:10.953+00:00"
}